Datasheet4U Logo Datasheet4U.com

LT3990-3.3 - 350mA Step-Down Regulator

This page provides the datasheet information for the LT3990-3.3, a member of the LT3990 350mA Step-Down Regulator family.

Description

The LT®3990 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 62V, and consumes only 2.5µA of quiescent current.

Features

  • n Low Ripple Burst Mode® Operation 2.5µA IQ at 12VIN to 3.3VOUT Output Ripple < 5mVP-P n Wide Input Voltage Range: 4.2V to 62V Operating n Adjustable Switching Frequency: 200kHz to 2.2MHz n Integrated Boost and Catch Diodes n 350mA Output Current n Fixed Output Voltages: 3.3V, 5V 2µA IQ at 12VIN n Accurate Programmable Undervoltage Lockout n FMEA Fault Tolerant (MSOP Package) Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin is Left Floatin.

📥 Download Datasheet

Datasheet preview – LT3990-3.3

📁 Similar Datasheet

  • LT3990-3.3 - 350mA Step-Down Regulator (Analog Devices)
  • LT3990-5 - 350mA Step-Down Regulator (Analog Devices)
  • LT3990 - 350mA Step-Down Regulator (Linear Technology)
  • LT3990 - 350mA Step-Down Regulator (Analog Devices)
  • LT3991 - 1.2A Step-Down Regulator (Linear Technology)
  • LT3905 - Boost DC/DC Converter (Linear Technology)
  • LT390AW - Ceramic Filter (LGE)
  • LT3932 - 2A Synchronous Step-Down LED Driver (Linear Technology)
  • LT3932-1 - 2A Synchronous Step-Down LED Driver (Analog Devices)
  • LT3950 - 1.5A LED Driver (Analog Devices)
Other Datasheets by Linear
  • LT3990-5 - 350mA Step-Down Regulator
  • LT3991-3.3 - 1.2A Step-Down Regulator
  • LT3991-5 - 1.2A Step-Down Regulator
  • LT3999 - 1MHz Push-Pull DC/DC Driver
  • LT3922 - 2A Synchronous Step-Up LED Driver
  • LT3952 - 60V LED Driver
  • LT3955 - LED Converter
  • LT3959 - Wide Input Voltage Range Boost/SEPIC/Inverting Converter

Full PDF Text Transcription

Click to expand full text
FEATURES n Low Ripple Burst Mode® Operation 2.5µA IQ at 12VIN to 3.3VOUT Output Ripple < 5mVP-P n Wide Input Voltage Range: 4.2V to 62V Operating n Adjustable Switching Frequency: 200kHz to 2.2MHz n Integrated Boost and Catch Diodes n 350mA Output Current n Fixed Output Voltages: 3.3V, 5V 2µA IQ at 12VIN n Accurate Programmable Undervoltage Lockout n FMEA Fault Tolerant (MSOP Package) Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin is Left Floating n Low Shutdown Current: IQ = 0.7µA n Internal Sense Limits Catch Diode Current n Power Good Flag n Small, Thermally Enhanced 16-Pin MSOP and (3mm × 3mm) DFN Packages APPLICATIONS n Automotive Battery Regulation n Power for Portable Products n Industrial Supplies LT3990/LT3990-3.
Published: |